“cropping systems in medieval Europe”的概念、定义、翻译、参考文献-科学参考

单词	cropping systems in medieval Europe
释义	cropping systems in medieval Europe Encyclopedia 管理学中世纪农业经济史思想史释 cropping systems in medieval Europe中世纪欧洲土地耕作制度中世纪欧洲的封建领主在庄园内通过分配给农奴份地，以条田为最小单位，实行强迫轮作制、休闲耕作制（分为二圃制和三圃制）和敞地制等，对农奴进行压榨和剥削的规则体系。
随便看	radio landing system radiolaria radiolarids radio lead radioligand binding assay radioligand binding assay (R[L]BA) radio light curve radio line radio-link interferometer radio-link interferometry radio lobe radiolocate radiolocational astronomy radiolocator radiological accident radiological dose radiological health supervision radiological non-destructive testing radiological protection radiological protection quantities and unit radiology Radiology Information System，RIS radio loud quasar radioloud quasar radioloud star

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。